Question

在下面代码的第6行，我添加了一个Runtime:addEventListener("collision", onCollision)，但是它正在与一个主体进行交互，如何在这种情况下将碰撞监听器排除在一个对象中“BCloud1.png”

function getRandomStar()
    local temp = starTable[math.random(1, #starTable)] -- Get a random star from starTable
    local randomStar = display.newImage(temp.imgpath) -- Set image path for object

    if ( temp.imgpath == "BCloud1.png" ) then
    physics.addBody( randomStar, "static", { density=.1, bounce=.1, friction=.2, radius=45 } )
    Runtime:addEventListener("collision", onCollision)
    temp.imgpath = "BCloud"..tostring(math.random(1, 3))..".png";
    end

    if ( temp.imgpath == "BCloud2.png" ) then
    temp.imgpath = "BCloud"..tostring(math.random(1, 3))..".png";
    physics.addBody( randomStar, "static", { density=.1, bounce=.1, friction=.2, radius=45 } )  
    end

    if ( temp.imgpath == "BCloud3.png" ) then
    temp.imgpath = "BCloud"..tostring(math.random(1, 3))..".png";
    physics.addBody( randomStar, "static", { density=.1, bounce=.1, friction=.2, radius=45 } )  
    end

    randomStar.myName = "star" -- Set the name of the object to star
    randomStar.movementSpeed = temp.movementSpeed; -- Set how fast the object will move
    randomStar.x = math.random(-30, _W);    
    randomStar.y = -35;
    randomStar.rotation = math.random(0,20) -- Rotate the object

    starMove = transition.to(randomStar, {
        time=randomStar.movementSpeed, 
        y=500,
        onComplete = function(self) self.parent:remove(self); self = nil; 
        end
        }) -- Move the star
end--END getRandomStar()

Answer 1

如果你想使用

Runtime:addEventListener("collision", onCollision)

并控制什么碰撞什么，然后使用碰撞过滤器。他们看起来要容易得多。

这是我在学习它们时使用的教程。

Collision Filters

将碰撞侦听器排除到一个对象

1 个答案: